Almost all of them have European surnames, but only ~20% of them have a European ancestor. If you are white, chances are good one of your ancestors came from France, or used a French surname to fool the authorities.
1 AC, or alternating current means the electrical current is alternating directions in a repetitive pattern.  AC is created by generators in power plants, and other sources. This AC current is delivered to our homes and businesses by the power lines we see everywhere.
Charge and current. Electric current is the rate of flow of electric charge. No current can flow if the circuit is broken - for example, when a switch is open. An electric current flows when electrons move through a conductor, such as a metal wire. Metals are good conductors of electricity.